Screed



March 23 1926.

G. F. CREAGHAN SCREED Filed Feb. 18. 1924 2 Sheets-Sheet l INVENTOR 6:]? C'rea Jan ATTOR HEY March 23 1926.

G. F. CREAGHAN SCREED Filed Pb. 18, 1924 2 Sheets-Sheet 2 are INVENTDR ATTORNEY WITNESS:

Patented Mar. 2a, 1926. 1,578,078

UNITED STATES PATENT OFFICE.

GERALD F. CREAGHAN, OF BANGOR, MAINE.

scannn.

Application filed February 18. 1924. Serial IiTo. 693,708.

Z '0 all whom it may concern: the feet may be easily removed when-strip- Be it known that I, GERALD F. GREAGHAN, ping the floor forms. The members 11 are a subject of the King of Great Britain, reprovided with transverse braces 14. siding at Bangor, in the county of Penob- The members 11 serve as supports for subscot and State of Maine, have invented new stantially channel-shaped beams 15. These and useful Improvements in Screeds, of beams are provided with spaced elongated which the following is a specification. openings 16, by means of which they are ad- This invention relates to improvements in justably secured to connecting blocks 17, screeds or gauges for concrete construction, connection being effected through the me an object being to provide means whereby diam of screws 18. The blocks 17 are conan accurate and uniform thickness of connected to the supports 11 by screws 18, the crete construction may be provided and thus heads of these screws engaging the inclined insure a perfectly level surface. walls of horizontally arranged grooves 19, I Another object of the invention is the pro while the shanks of the screws have a threadvision of a screed which may be used to ed engagement with openings 20 provided in gauge the surface of rough work or roughthe upper ends of the supports 11. The

ing and which may be subsequently adjusted grooves 19 extend downwardly for the pasto gauge the surface of the finish. sage of the shanks of the screws 18. The

Another object of the invention is the prolower'ends of the screws are surrounded by 7 vision of a screed which is simple and ecosleeves 21 which are positioned between the nomical in construction, may be easily and tops of ths supports and the members 14. quickly positioned for use and by means of These sleeves are preferably made of sheet which screeding and troweling will be facilitin and provide protecting sleeves whereby tated. the screws 18 may be adjusted after the con- With the above and other objects in view, crete work has been poured. the invention further includes the following The screeds may be made of any suitable novel features and details of construction, size and length and each section may include to be hereinafter more fully described, illusany number of supports. They may be trated in the accompanying drawings and spaced any suitable distance above the floor pointed out in the appended claim. form, the top surfaces of the screeds provid- In the drawings ing a gauge for the elevation of the top sur- Figure 1 is an elevation showing the screed face of the roughing, so that this top sur-. arranged for use. face may be accurately and easily leveled.

Figure 2 is a top plan view. lVhen the floor is removed the feet 12 will Figure 3 is a transversesectional view on separate from the supports 11 due to the the line 3-43 of Figure 1. perforations 13.

Figure 4 is an enlarged section on the line If it is desired to provide a finished sur- 1 1t of Figure 3. face for the roughing, the screws 18 may be Figure 5 is a view similar to Figure 3 adjusted to elevate the screeds a distance showing the screed arranged to gauge a finabove the top surface of the roughing equal ished surface. to the desired thickness of the finish. This Referring to the drawings in detail whereis clearly illustrated in Figure 5 of the drawin like characters of reference denote corings wherein the dotted line a indicates the responding parts, the reference character 10 top surface of the roughing while the dotted 1 indicates a portion of a floor form andll line Z) indicates the surface of the finish. supporting members. These members 11 Adjustment for this purpose is easily efare arranged in spaced relationas shown in fected throughthe use of a screw driver in- Figures 1 and 2 of the drawings and comsorted through the openings 16. prise inverted substantially U-shaped The invention is susceptible of various frames whose opposite side members have changes in its form, proportions and minor feet 12 extending at an angle therefrom. details of construction and the right is here- The supporting members 11 are preferably in reserved to make such changes as properly formed of strips of metal and bent into the fall within the scope of the appended claim. shape shown, a number of perforations 13 Having described the invention. what is being provided at the juncture of the feet claimed is iwith. the side members of the frame so that a screed. spaced. inverted substantially U-shaped supports, channel shaped beams above the supports longitudinal openings connecting blocks mounted upon the supports, screws carried by the connecting blocks with their heads lnovably disposed in the longitudinal openings and the said blocks having horizontal grooves with recesses communicating with the grooves, screw members having adjustable connec- 111E137 be vertically adjusted and the connection between the channel shaped beams and the supports permitting longitudinal ad- 15 justrnent.

In testimony whereof I aiix my signature.

GERALD F. CREAGHAN. 

